Extended Data Fig. 3: Determination of [M/H]tot and F* with the F* method.
From: Large metallicity variations in the Galactic interstellar medium
The variables are described in equation (8). The most volatile elements (red) are taken from the literature (Extended Data Table 6) and shown for reference: their discrepancy with respect to the more refractory elements suggests a mix between high-metallicity and pristine gas, see Methods. The error bars show the 1σ uncertainties.
